AMVACompBufferInfo structure (amva.h)

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The AMVACompBufferInfo structure describes the allocated surfaces and compressed buffer information.

Syntax

typedef struct _tag_AMVACompBufferInfo {
  DWORD         dwNumCompBuffers;
  DWORD         dwWidthToCreate;
  DWORD         dwHeightToCreate;
  DWORD         dwBytesToAllocate;
  DDSCAPS2      ddCompCaps;
  DDPIXELFORMAT ddPixelFormat;
} AMVACompBufferInfo, *LPAMVACompBufferInfo;

Members

dwNumCompBuffers

Number of buffers requested for compressed data.

dwWidthToCreate

Width of surface to create.

dwHeightToCreate

Height of surface to create.

dwBytesToAllocate

Total number of bytes used by each surface.

ddCompCaps

DDSCAPS2 structure defining the capabilities of the DirectDraw surface created to store compressed data.

ddPixelFormat

DDPIXELFORMAT structure, describing the pixel format used to create surfaces to store compressed data.

Requirements

See also

DirectShow Structures

IAMVideoAccelerator::GetCompBufferInfo